// 访问修饰符
export {}

class Person {
    public name: string   // 必须先申明,默认 public
    private age:number
    protected gender:boolean
    constructor(name:string){
        this.name =  name;
        this.age = 1
        this.gender  = true;
    }


    sayHi(msg: string):void{
        
    }
}